通过对烟田免耕直播套种玉米的播种期、种植密度以及与烟稻轮作种植模式的对比研究。结果表明,在烟叶采收后期,免耕直播套种玉米,烤烟和玉米共生期控制在15～20d,玉米种植密度控制在3500～4000株/667m2,对前作烤烟产量不存在显著不利影响,相反能提高烟叶品质。烤烟套种玉米种植模式的总产值比现行的烟稻轮作种植模式总产值增收23.2%以上,并省工省时。 By comparing the sowing date, planting density and planted rotation pattern of no-tillage and sowing maize in tobacco field. The results showed that the no-tillage direct seeding corn, flue-cured tobacco and maize were controlled at 15 ~ 20 days and the planting density of maize was controlled at 3500 ~ 4000 / 667m2 in late tobacco harvest, which had no significant adverse effect on the yield of pre-cured tobacco. On the contrary, Improve the quality of tobacco The total output value of flue-cured tobacco intercropping corn planting mode is 23.2% more than the current total output value of planting mode of tobacco-growing crops, and the time and labor are saved.